Philips TDA9964 Specifications page 12

Philips Semiconductors
Fig 7. Total gain from CDS input to ADC input as a function of PGA input code.
Noise measurement at ADC outputs: Coupling capacitor at input is grounded, so only noise contribution of the front-end is
evaluated. Front-end works at 30 Mpixels with line of 1024 pixels of which the first 40 lines are used to run CLPOB and the
last 40 lines for CLPDM. Data at the ADC outputs is measured during the other pixels. As a result, the standard deviation of the
codes statistic is computed, resulting in the noise. No quantization noise is taken into account as there is no input.
Fig 8. Typical total noise performance as a function of PGA gain.
9397 750 07918
Objective specification
12-bit, 3.0 V, 30 Msps analog-to-digital interface for CCD cameras
30
TOTAL
gain
(dB)
24
18
12
6
1.9
0
0 64
6
handbook, halfpage
N tot(rms)
(LSB)
5
4
3
2
1
0
0 64
Rev. 03 — 16 January 2001
FCE521
25.9
128 192 255
PGA input code
FCE522
128 192 255
PGA code
TDA9964
© Philips Electronics N.V. 2001. All rights reserved.
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